Habitat preferences of sympatric sandgrouse during the breeding season in Spain: a multi-scale approach

Martín, Beatriz; Martín, Carlos A.; Palacı́n, Carlos; Sastre, Pablo; Ponce, Carlos; Bravo, Carolina

doi:10.1007/s10344-014-0826-z

Cited by 6 publications

(10 citation statements)

References 29 publications

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“…Thus, even if this treatment does not offer the highest food resources that early treatments appear to provide, the microhabitat requirements of those species strongly limit the choices to manage fallows for them. Short vegetation height and low cover is reported by other studies as the optimal habitat for sandgrouse species (Martín et al 2014), probably to better detect predators and reduce predation risk (Butler and Gillings 2004). The Short-toed lark also shows a positive response to bare ground, selecting low shrub cover, more herbaceous plants and low vegetation height (Moreira 1999;Suárez et al 2002).…”

Section: Discussionmentioning

confidence: 83%

Fallow management for steppe bird conservation: the impact of cultural practices on vegetation structure and food resources

et al. 2016

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The potential of fallow lands to favor farmland bird conservation is widely recognized. Since fallows provide key resources for birds within the agricultural matrix, such as nesting sites, shelter and forage, complete understanding of the effect of field-management strategies on vegetation structure and food is essential to fulfill bird requirements and improve habitat management. In this study we experimentally compare the most common field practices (ploughing, shredding, herbicide application and cover cropping) on fallow lands by assessing the resources they provide for birds in terms of vegetation structure and food resources (leaf and seed availability), as well as the economic costs of their implementation. Fallow management treatments are ranked for six target species in a lowland area of the northeastern Iberian Peninsula, according to the available information on their requirements. The different agronomic practices offer various quantities and types of resources, highlighting the importance of fallow management in bird conservation. Shredding and early herbicide application (February) are estimated to be good practices for Little Bustard (Tetrax tetrax) and Calandra Lark (Melanocorypha calandra), providing both favorable habitat and foraging conditions, while being economical. Meanwhile, superficial tillage in spring is found to be optimum for the rest of the species tested, despite being among the poorest food providers. Alternating patches of the best treatments would improve the effectiveness of agri-environmental schemes by maximizing the harboring habitat for the endangered species.

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Section: Discussionmentioning

confidence: 83%

Fallow management for steppe bird conservation: the impact of cultural practices on vegetation structure and food resources

et al. 2016

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“…Surveys were carried out during the early breeding season, as in 2005 (April-July; BBS lay clutches from May until September; Mougeot 2022), preferably before the cereal harvest, because the area of suitable habitat is greatly enlarged when cereal crops are harvested (sandgrouse avoid tall cereals but use stubble; Martín et al 2014;Sanz Pérez et al 2022;Tarjuelo et al 2020a). The recommended sampling dates differed between regions, according to the climatic variability between them (see Supplementary material Table S1).…”

Section: Survey Methodsmentioning

confidence: 99%

Population decline of the Black-bellied Sandgrouse Pterocles orientalis in continental Spain, a main western Palearctic stronghold

Mougeot,

Fernández-Tizón,

Tarjuelo

et al. 2024

Bird Conservation International

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Summary Many European farmland bird populations are rapidly declining because of agricultural intensification and land-use changes. Robust estimates of population sizes and trends, habitat use, and protected area coverage within the distribution range are crucial to inform the conservation and management of threatened species. Here we report on the results of the 2019 Black-bellied Sandgrouse Pterocles orientalis (BBS) survey promoted and coordinated by SEO/BirdLife to update its breeding distribution, population size, and trends in continental Spain. A total of 660 grid cells, 10 × 10 km, Universal Transverse Mercator (UTM), were surveyed (81% of the distribution area), with 2,257 visits to 1,750 walked transects (7,001 km in total; 10.6 km per UTM). BBS was detected in 43% of sampled UTMs. At transect level, occupancy was 11% higher inside protected areas. At UTM level, occupancy was estimated at 0.58 (Bayesian credible interval [BCI] 95%: 0.55–0.61), revealing that BBS occupied about half of its previous breeding range (2003–2005). Using hierarchical distance sampling modelling, we estimated an average density of 1.33 individuals/km2 in occupied areas, and a population of 4,025 individuals (confidence interval: 1,840–7,609) within sampled areas, with an additional 697 individuals (confidence interval 461–1,075) in areas that were not surveyed. Further, the relative abundance of BBS (Kilometric Abundance Index) declined by 63% between 2005 and 2019 (annual decline rate of 4.5%). BBS used agricultural habitats (73%) and unprotected areas (54%) despite a higher occupancy within protected areas. Given the recent decline rate and persistent threats, the BBS conservation status should be upgraded to “Endangered” in peninsular Spain. Its future depends on land-use changes and agricultural practices, in particular the maintenance of fallows, semi-natural habitats, and pastures for extensive grazing. Better protection of important areas and targeted conservation initiatives should be promoted to halt and reverse the population decline in this key western Palearctic stronghold.

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“…En época reproductora, la ganga ibérica selecciona formaciones vegetales naturales con una estructura estepárica (pastizales anuales mediterráneos, espartal, matorral bajo, pastizales salinos o gipsófilos, almajales, etc.) así como mosaicos agropecuarios compuestos de parcelas de usos heterogéneos (cultivos de cereal y leguminosas, labrados, barbechos, eriales), siempre que sean terrenos llanos y desarbolados, con vegetación baja y escasa cobertura (Herranz y Suárez, 1999;Martín et al, 2014;Suárez et al, 2006). Ocasionalmente, usa viñedos tradicionales, olivares u otros cultivos leñosos abiertos con escasa vegetación herbácea (Tarjuelo et al, 2020).…”

Section: La Ganga Ibérica Y La Ganga Ortega En España Introducción 11unclassified

“…Los requerimientos de hábitat de la ganga ortega en la península ibérica son menos estrictos que los de la ganga ibérica, un patrón que también parece repetirse a escala local (Benítez-López et al 2014). La selección de hábitat de la ganga ortega es similar a la de la ganga ibérica, aunque más dependiente de manchas de vegetación natural para reproducirse y alimentarse, evitando el cereal cuando éste ha alcanzado una altura moderada y seleccionando campos labrados, barbechos, rastrojeras, linderos y pastizales naturales o seminaturales de poca altura (Suárez et al, 2006;Martín et al, 2014;Benítez-López et al, 2017). Además, emplea con frecuencia áreas de matorral bajo de escasa cobertura (Herranz y Suárez, 1999).…”

Section: La Ganga Ibérica Y La Ganga Ortega En España Introducción 11unclassified

“…Sin embargo, las aves reproductoras pasan más tiempo posadas, por lo que la detección de gangas durante la época reproductora requiere de una búsqueda intensa a través de los campos y alejada de los caminos. Así, la mejor metodología para el muestreo de la población reproductura de las gangas consiste en hacer recorridos a pie por los hábitats usados por estas especies: zonas llanas y abiertas con poco relieve, con escasa vegetación y de baja altura, y muchas veces con surcos y piedras que permiten a las aves refugiarse (Suárez et al, 2006;Martín et al, 2014;Benítez-López et al, 2017).…”

Section: La Ganga Ibérica Y La Ganga Ortega En España Introducción 11unclassified

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La ganga ibérica y la ganga ortega en España, población reproductora en 2019 y método de censo

Mougeot¹,

Fernández‐Tizón²,

Tarjuelo³

et al. 2021

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Población reproductora en 2019 y método de censo 54El trabajo de cientos de personas que aportan información y de las comunidades autónomas que mantienen activo su sistema de seguimiento de avifauna hacen posible la actualización de la situación de la población de muchas especies de aves.¡Muchas gracias a todos! Coordinación de la colección Juan Carlos del Moral (SEO/BirdLife) Fotografía de portada Dos machos de ganga ortega y una hembra de ganga ibérica visitan un bebedero.

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Habitat preferences of sympatric sandgrouse during the breeding season in Spain: a multi-scale approach

Cited by 6 publications

References 29 publications

Fallow management for steppe bird conservation: the impact of cultural practices on vegetation structure and food resources

Fallow management for steppe bird conservation: the impact of cultural practices on vegetation structure and food resources

Population decline of the Black-bellied Sandgrouse Pterocles orientalis in continental Spain, a main western Palearctic stronghold

La ganga ibérica y la ganga ortega en España, población reproductora en 2019 y método de censo

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